<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>JSP homework</title>
</head>
<body>
	<% if(session.getAttribute("UserName")!=null)
		{
			out.println("hello,"+session.getAttribute("UserName"));
		}
	%>
	<form action="loginServlet"method="post">
  <label for="fname">用户名</label>
  <input type="text" id="UserName" name="UserName"><br><br>
  <label for="lname">密码</label>
  <input type="password" id="Password" name="Password"><br><br>
  <input type="submit" formmethod="post" formaction="loginServlet" value="登陆">
</form>
</body>
</html>